Gemini CLI extensions

Gemini CLI extensions package prompts, MCP servers, custom commands, themes, hooks, sub-agents, and agent skills into a familiar and user-friendly format. With extensions, you can expand the capabilities of Gemini CLI and share those capabilities with others. They are designed to be easily installable and shareable.

To see what's possible, browse the Gemini CLI extension gallery.

Choose your path

Choose the guide that best fits your needs.

I want to use extensions

Learn how to discover, install, and manage extensions to enhance your Gemini CLI experience.

Manage extensions: List and verify your installed extensions.
Install extensions: Add new capabilities from GitHub or local paths.

I want to build extensions

Learn how to create, test, and share your own extensions with the community.

Build extensions: Create your first extension from a template.
Best practices: Learn how to build secure and reliable extensions.
Publish to the gallery: Share your work with the world.

Manage extensions

Use the interactive /extensions command to verify your installed extensions and their status:

bash

/extensions list

You can also manage extensions from your terminal using the gemini extensions command group:

bash

gemini extensions list

Installation

Install an extension by providing its GitHub repository URL. For example:

bash

gemini extensions install https://github.com/gemini-cli-extensions/workspace

For more advanced installation options, see the Extension reference.